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Re: Calling Ghostscript from BASIC

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From Ronald <gettingchoppy@gmail.com>
Newsgroups comp.sys.acorn.programmer
Subject Re: Calling Ghostscript from BASIC
Date Sun, 14 Jun 2020 16:38:33 +1200
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In message <587d6e2a47rhnews@dsl.pipex.com>
          "Rob Hemmings (News)" <rhnews@dsl.pipex.com> wrote:

> It is ages since I've been programming so apologies if this is a silly
> question.
> 
> Is there a way to call GhostScript from inside a BASIC program and return
> control to the BASIC program afterwards?  I've just tried invoking
> GhostScript from a program using an OSCLI command but although
> GhostScript then runs correctly it does not hand back control to the
> BASIC program which just ends.  I think I understand why it is happening
> but is there any way to get around it?
>
 
Without going into the heavy Taskwindow stuff, one way is to filer_run
an obey file containing whatever, could even be a Taskwindow command 
running yet another obey file with desired actions for within the
taskwindow.

The main consideration is that the BASIC file will continue to
the end unless you put have a wait routine straight after.

I guess checking for a file or system variable to be set with 
some sort of wimp poll so it's not grinding away in a loop.
I've been experimenting with pause%=INKEY 2000
any key press will stop the wait, useable to a degree.
 
Ronald

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Thread

Calling Ghostscript from BASIC "Rob Hemmings (News)" <rhnews@dsl.pipex.com> - 2020-06-08 15:22 +0100
  Re: Calling Ghostscript from BASIC Harriet Bazley <harriet@bazleyfamily.co.uk> - 2020-06-08 15:39 +0100
    Re: Calling Ghostscript from BASIC "Rob Hemmings (News)" <rhnews@dsl.pipex.com> - 2020-06-08 15:44 +0100
    Re: Calling Ghostscript from BASIC Steve Fryatt <news@stevefryatt.org.uk> - 2020-06-08 16:19 +0100
      Re: Calling Ghostscript from BASIC Martin Wuerthner <spamtrap@mw-software.com> - 2020-06-08 20:22 +0200
        Re: Calling Ghostscript from BASIC Harriet Bazley <harriet@bazleyfamily.co.uk> - 2020-06-08 21:15 +0100
          Re: Calling Ghostscript from BASIC druck <news@druck.org.uk> - 2020-06-09 10:58 +0100
            Re: Calling Ghostscript from BASIC Harriet Bazley <harriet@bazleyfamily.co.uk> - 2020-06-09 15:09 +0100
              Re: Calling Ghostscript from BASIC Ronald <gettingchoppy@gmail.com> - 2020-06-13 13:01 +1200
                Re: Calling Ghostscript from BASIC druck <news@druck.org.uk> - 2020-06-13 12:03 +0100
                Re: Calling Ghostscript from BASIC Ronald <gettingchoppy@gmail.com> - 2020-06-14 01:29 +1200
        Re: Calling Ghostscript from BASIC "Rob Hemmings (News)" <rhnews@dsl.pipex.com> - 2020-06-08 23:37 +0100
  Re: Calling Ghostscript from BASIC Ronald <gettingchoppy@gmail.com> - 2020-06-14 16:38 +1200
    Re: Calling Ghostscript from BASIC Steve Fryatt <news@stevefryatt.org.uk> - 2020-06-14 07:40 +0100
      Re: Calling Ghostscript from BASIC "Rob Hemmings (News)" <rhnews@dsl.pipex.com> - 2020-06-14 08:48 +0100
      Re: Calling Ghostscript from BASIC Ronald <gettingchoppy@gmail.com> - 2020-06-14 20:27 +1200
        Re: Calling Ghostscript from BASIC Steve Fryatt <news@stevefryatt.org.uk> - 2020-06-14 10:01 +0100
          Re: Calling Ghostscript from BASIC Harriet Bazley <harriet@bazleyfamily.co.uk> - 2020-06-14 15:41 +0100
            Re: Calling Ghostscript from BASIC Ronald <gettingchoppy@gmail.com> - 2020-06-15 14:51 +1200
              Re: Calling Ghostscript from BASIC druck <news@druck.org.uk> - 2020-06-15 08:56 +0100
                Re: Calling Ghostscript from BASIC Ronald <gettingchoppy@gmail.com> - 2020-06-15 20:30 +1200
        Re: Calling Ghostscript from BASIC Harriet Bazley <harriet@bazleyfamily.co.uk> - 2020-06-14 15:44 +0100

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